documentclass{article}
usepackage{tikz}
begin{document}

tikzstyle{decision} = [rectangle, minimum height=18pt, minimum width=18pt, draw=blue, fill=none, ultra thick, inner sep=0pt]
tikzstyle{chance} = [circle, minimum width=18pt, draw=blue, fill=none, ultra thick, inner sep=0pt]
tikzstyle{line} = [draw=none]

tikzset{
grow=right,
sloped,
join=miter,
level 1/.style={sibling distance=5cm,level distance=5.2cm},
level 2/.style={sibling distance=4cm, level distance=6.7cm},
level 3/.style={sibling distance=3cm, level distance=6.7cm},
edge from parent/.style={ultra thick, draw=blue},
edge from parent path={(tikzparentnode.east) -- (tikzchildnode.west)},
every node/.style={text ragged, inner sep=1mm}
}

begin{tikzpicture}[]
small
node[decision]{}
    child{node[line]{}
      edge from parent
        node[above]{Option 2}
    }
    child{node[chance]{}
      child{node[line]{}}
      child{node[line]{}}
      edge from parent
            node[below]{Option 1}
        };
end{tikzpicture}

end{document}

documentclass{article}
usepackage{forest}

tikzset{
Above/.style={
  midway,
  above,
  font=scriptsize,
  text width=1.5cm,
  align=center,
  },
Below/.style={
  midway,
  below,
  font=scriptsize,
  text width=1.5cm,
  align=center
  }
}

begin{document}

begin{forest}
for tree={
  grow=east,
  draw=cyan,
  circle,
  line width=0.2pt,
  parent anchor=east,
  child anchor=west,
  edge={draw=cyan},
  edge label={Hugecolor{black}},
  edge path={
    noexpandpath[forestoption{edge}]
      (!u.parent anchor) -- ([xshift=-1.6cm].child anchor) --
      (.child anchor)forestoption{edge label};
  },
  l sep=2cm,
}
[,rectangle, s sep=35pt,
  [,edge label={node[Below]{option1}}
    [,edge label={node[Below]{a longer text goes here}}
    ]
    [,edge label={node[Above]{text}}
    ]
  ]
  [,edge label={node[Above]{option2}}
    [,edge label={node[Below]{a longer text goes here}}
    ]
    [,edge label={node[Above]{text}}
    ]
  ]
]
end{forest}

end{document}